One of the most common materials containing asbestos fibers is attic and wall insulation.
Attic insulation is used to.
Polystyrene and polyurethane are the most common types of materials used in making foam board.
With closed cell foam 2 inches of thickness also serves as a moisture barrier.
When air can t move through it you have zero heat transfer through convection.
There are two main types of insulation.
Facing is a thin layer of paper or plastic attached to one side of batting insulation which is sold in a roll.
R value is a measure of insulation s ability to resist heat traveling through it.
Can be used to insulate almost any part of your home from the roof down to the foundation.
Now that you ve air sealed your attic and basement check your attic insulation levels and add more if necessary.
Gaps in the attic or between the lower floors and the attic will let heated or cooled air escape to the great unconditioned outdoors making any insulation you add essentially useless.
So it s time to pay close attention to what s happening up there.
You can achieve better thermal performance in your attic by adding an additional layer of insulation.
Batt and roll insulation works well between joist and stud spaces or if you have a wide open space or a crawlspace.
Rigid panels of insulation.
Find a diagram of common air leaks here.
But just because your insulation is old doesn t mean it is dangerous.
In older homes specifically asbestos may be found in many different materials from pipe insulation to flooring adhesive to roof shingles.
Insulation level are specified by r value.
If you feel like your.
Sheathing reduces heat conduction through structural elements like wood and steel studs.
Loose fill blown in insulation is best for tight spaces or if your attic already has a layer of insulation.
Achieving greater r values in exterior walls in exterior walls add insulating sheathing to achieve a greater r value in your wall system.
See install batt and roll insulation for details.
Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.
The higher the r value the better the thermal performance of the insulation.
The attic is the easiest place to add insulation to improve your comfort and the energy efficiency of your home.
Batt and roll insulation and loose fill sometimes known as blown in insulation.